Amazon AWS provides Shields for security against attacks. AWS Shields uses two tiers of security- Standard and Advanced.
Standard AWS Shield, which comes by default with AWS, can be used as a first-measure security gate. It protects network and transport layers.
Subsequently, one can also subscribe to Shield Advanced for another layer of added security. The AWS Advanced Shield provides integration with AWS Web Application Firewall (WAF). AWS WAF provides custom rules to filter out traffic with threat signatures.
Web Application Firewall provides three main actions : allow all requests for a rule, block all requests, and count all requests for a new policy.
